Finding the Fourth Proportional to 138,923.51, 208,306.49 and 44,135.28
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Solution
The fourth proportional to 138,923.51, 208,306.49 and 44,135.28 is: 66,177.89
Step by Step Solution
- Step 1: Write the proportion equation
138,923.51 : 208,306.49 = 44,135.28 : x - Step 2: Convert to fraction form
138,923.51/208,306.49 = 44,135.28/x - Step 3: Cross multiply
138,923.51x = 208,306.49 × 44,135.28 - Step 4: Simplify right side
138,923.51x = 9,193,665,041.29 - Step 5: Solve for x
x = 9,193,665,041.29/138,923.51 - Step 6: Final answer
x = 66,177.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.